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Ilya Leoshkevich authored
Implement the cpuv4 load with sign-extension, which is encoded as BPF_MEMSX (and, for internal uses cases only, BPF_PROBE_MEMSX). This is the same as BPF_MEM and BPF_PROBE_MEM, but with sign extension instead of zero extension, and s390x has the necessary instructions: lgb, lgh and lgf. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20230919101336.2223655-6-iii@linux.ibm.comSigned-off-by: Alexei Starovoitov <ast@kernel.org>
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